Sorry, you are probably SOL. Your System is quite ancent (circa 2003) and HP only offers XP drivers for it. Googling around a bit shows quite a few people with the same ASUS PVR-416 TV/FM Tuner Card stuck without Vista/Win 7 drivers.
Your best bet would be to spend $30 on a New Tuner.
First, please hit the Caps Lock key one more time so you don't come off looking like a jerk here.
Second, please check the HP website for drivers. If no Windows 7 specific drivers exist for your tuner card yet, try the Windows Vista drivers instead.
I would remind you Prophecy that some people have eye vision problems such as myself and use caplocks not you yell, but to see the type much more clearly.. Please remember this and maybe ask if they have vision problems first before verbalising that they may look like a "jerK' because you might be the one to look like that if they have and say so.. I call it, covering your @ss :-) No offence intended, just putting it out there. Have a nice day :-)